摘要
对大蹄蝠的某些年龄特征进行了比较研究。根据左侧第 1上臼齿的磨损情况 ,将大蹄蝠划分为 7个年龄组。同时探讨了各年龄组中假乳头的分布 ,右侧假乳头发达者最多 ,占73 68% ,平均长度为 7 2 91 9± 2 330 2mm (N =1 4)。左侧发达者仅占 1 5 79% ,平均长度为 9± 1 0 0mm (N =3)。从皮叶与性别和年龄的关系可见 ,具皮叶者多数为雄性 (72 % ) ,但雌性亦有 2 1 1 %的个体有皮叶。结果还表明 ,皮叶的发达程度不与年龄的增加呈正相关关系。
It was reported that some age characteristic of H. armiger : age structure, pubic nipple and projecting part of forehead etc.. According to degrees of wear of the left upper first molar tooth, H. armiger was divided into 7 age groups. The pubic nipple in different age groups was studied too: female H armiger right side (73 68%) of pubic nipples is longer than left, means 7 291 9±2 330 2 mm( N =14) For relationship of projecting part of forehead to sex and age, most of male H armiger (72%) has projecting part of forehead, but some of female (21 1%) has it too .Finally, the result showed that the developed level of projecting part of forehead has no direct proportion with increase of age.
出处
《兽类学报》
CAS
CSCD
北大核心
2000年第4期284-288,共5页
Acta Theriologica Sinica
基金
国家自然科学基金资助项目!(39770 1 0 9)
四川省教委青年基金资助项目
关键词
四川
大蹄蝠
年龄特征
假乳头
皮叶
Sichuan
Hipposideros armiger
Age structure
Pubic nipple
Projecting part of forehead
